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Is it better to use C void arguments “void foo(void)” or not “void foo()”? [duplicate]
...-declarator ( parameter-type-list )
direct-declarator ( identifier-list_opt )
so only the identifier-list version can be empty because it is optional (_opt).
direct-declarator is the only grammar node that defines the parenthesis (...) part of the declarator.
So how do we disambiguate and us...
Get list of databases from SQL Server
...uery:
SELECT name FROM master.dbo.sysdatabases
or if you prefer
EXEC sp_databases
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how to check and set max_allowed_packet mysql variable [duplicate]
...
max_allowed_packet
is set in mysql config, not on php side
[mysqld]
max_allowed_packet=16M
You can see it's curent value in mysql like this:
SHOW VARIABLES LIKE 'max_allowed_packet';
You can try to change it like this, bu...
How to resize a custom view programmatically?
...
this.setLayoutParams(new LinearLayout.LayoutParams(LayoutParams.FILL_PARENT, theSizeIWant));
Problem solved!
NOTE: Be sure to use the parent Layout's LayoutParams. Mine is LinearLayout.LayoutParams!
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In Python, how do I convert all of the items in a list to floats?
... For large array's, I would recommend using numpy: np.array(inp_list, dtype=np.float32). You don't even have to specify if it's a float and just use: np.array(inp_list)
– Thomas Devoogdt
May 23 '18 at 13:40
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What are the differences between utf8_general_ci and utf8_unicode_ci? [duplicate]
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utf8_general_ci is a very simple — and on Unicode, very broken — collation, one that gives incorrect results on general Unicode text. What it does is:
converts to Unicode normalization form D for canonical decomposition
re...
overlay opaque div over youtube iframe
...text/html" width="520" height="330" src="http://www.youtube.com/embed/NWHfY_lvKIQ?wmode=opaque" frameborder="0"></iframe>
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Replacing all non-alphanumeric characters with empty strings
...value.replaceAll("[^A-Za-z0-9]", "");
or
return value.replaceAll("[\\W]|_", "");
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How to unit test an object with database queries
... as in the following pseudo-code:
class Bar
{
private FooDataProvider _dataProvider;
public instantiate(FooDataProvider dataProvider) {
_dataProvider = dataProvider;
}
public getAllFoos() {
// instead of calling Foo.GetAll() here, we are introducing an extra layer ...
Regular cast vs. static_cast vs. dynamic_cast [duplicate]
...
static_cast
static_cast is used for cases where you basically want to reverse an implicit conversion, with a few restrictions and additions. static_cast performs no runtime checks. This should be used if you know that you refer to...